Weather stripping for windows

Hello, I am in need of some weather stripping for windows that were installed in our home in 1991. They are the MW freedom clad vinyl. The weather stripping is a rigid strip that slides into a channel. It has a flange and then a "V" hook that goes in the channel.. The windows roll out to one side. Its hard to tell the right one to get on the website. They were brown orginally but the beige kind will work since we have painted them. please advise the product number

Thank you for the reply. I will check on the cross section and go from there.

Lynn